The Difference Between Onsite and Offsite Data Backup
Disaster Recovery
Frazer Lloyd-Davies
Every business must have a backup system to recover data when loss occurs. No organisation is safe from losing critical information through cyber attacks, power outages, human error or natural disasters like fires and floods.
When this happens, it can stop your business operations immediately. Client records, financial files, project documents and email correspondence that took years to accumulate can disappear within minutes. The cost of recreating this information – if it’s even possible – often exceeds the investment required for disaster recovery planning.
As a result, many businesses have adopted two common backup strategies: onsite backup and offsite backup.
What is Onsite Data Backup?
Onsite backup stores copies of your data on physical devices located within your premises. This includes external hard drives, Network Attached Storage (NAS) systems or backup servers housed in your office or server room.
The backup process runs automatically, usually scheduled during evenings or weekend hours when your systems aren’t busy. It creates exact copies of your files, databases and system configurations.
Your internal IT team or support provider can access these backup devices immediately through your local network. They can check backups completed properly and restore data without requiring internet connectivity or coordination with external providers.
Benefits of Onsite Backup
- Fast Recovery: Onsite backup provides the fastest possible data restoration. Large database restores that might take days to download from remote locations can complete within hours when restored from local storage.
- Complete Security Control: You retain full control over your data, backup infrastructure and security protocols. Physical access to backup storage can be tightly controlled within your premises, reducing exposure to internet-based threats that can affect cloud services.
- Lower Running Costs: After buying the initial equipment, onsite backup costs very little to run. Your main ongoing expenses are electricity and occasional hardware replacements.
- Works Without Internet: Onsite backup continues working when your internet fails. Power cuts, broadband problems or cyber incidents won’t stop you accessing your backed-up data when you need it.
Limitations of Onsite Backup
- Higher Setup Costs: Onsite backup requires significant upfront investment in backup servers, storage hardware and software licenses. You’ll also need appropriate infrastructure such as server room space and cooling systems to house the equipment properly.
- Vulnerable to Local Disasters: Your backup devices and primary systems share the same location. A fire, flood, theft or cyber attack on your premises could destroy both your working data and your backups at the same time, leaving you with no way to recover your information.
- Fixed Storage Limits: Storage devices can only hold a specific amount of data. As your business creates more files and databases, you’ll need to purchase additional storage hardware and have it professionally installed and configured.
What is Offsite Data Backup?
Offsite backup stores copies of your data in a remote location away from your business premises. Most offsite backup today uses cloud-based storage services or specialist data centres to house your information.
Your data gets encrypted and transmitted over secure internet connections to these remote facilities. The facilities are purpose-built for storing data safely, with backup power, security systems and climate control.
Professional offsite services handle backup scheduling, monitoring, encryption and storage maintenance on your behalf, giving you access to enterprise-level data protection without investing in specialised hardware or technical expertise.
Benefits of Offsite Backup
- Protection from Disasters: Your backup sits in a completely different location from your business. Local disasters like fires, floods or break-ins cannot affect both your office and your remote backup storage at the same time.
- Professional Storage Facilities: Offsite providers run purpose-built data centres with professional security, environmental controls and backup power systems. These facilities offer better protection than most businesses can provide in their own premises.
- Expandable Storage: Cloud-based offsite backup expands automatically as your data grows. You don’t need to buy additional hardware or plan storage capacity. Extra space becomes available when needed, usually for predictable monthly fees.
- Automated Management: The service provider handles all backup operations, monitoring and maintenance. Your IT team gets alerts if problems occur but doesn’t need to manage daily backup tasks.
Considerations for Offsite Backup
- Slower Recovery Times: Restoring data from offsite locations takes longer because you’re downloading over your internet connection. Large amounts of data can take hours or days to restore, depending on your internet speed.
- Ongoing Subscription Costs: Offsite backup involves monthly or annual subscription fees that continue as long as you use the service.
- Third-Party Data Storage: Some businesses prefer keeping sensitive data under their direct control rather than storing it with external providers, especially when handling confidential client information.
The Hybrid Approach
Many businesses use both onsite and offsite backup together. This creates three copies of your data: the original, one local backup and one remote backup.
Hybrid backup gives you fast access to recent data through your onsite system while protecting against disasters through offsite storage. If something goes wrong, you can restore recent work quickly from local backups while using remote copies for complete disaster recovery.
This approach costs more but provides the strongest protection. It’s worth considering if data loss would seriously impact your business financially or cause regulatory problems.
Backing Up Your Data with Acronyms
If you’re looking to implement an onsite or offsite backup within your daily business operations, or are considering a hybrid approach, you may not know where to start.
Fortunately, the team at Acronyms have been assisting large and small businesses alike with backing up their network and securing their data since 2003. Our team of technicians, engineers and consultants offer an array of bespoke digital solutions and services that can help to smoothen the backup process and minimise disruptions in your day.
Call us on 01752 606553 or arrange a consultation about protecting your business data.